<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body ,html{
            overflow: hidden; /* 禁用滚动条 */
            margin: 0;
            padding: 0; /* 去除默认的内边距 */
            width: 100%;
            height: 100%;
        }
        #piechart{
            width: 100%;
            height: 100%;
        }
    </style>
</head>
<body>
<script src="./lib/echarts.js"></script>
<div id="piechart"></div>
<script>
    var myChart = echarts.init(document.getElementById('piechart'));
    var option = {
        title: {
            text: 'pie chart',
            subtext: 'Fake Data',
            left: 'center'
        },
        // tooltip: {
        //     trigger: 'item'
        // },
        legend: {
            orient: 'vertical',
            left: 'left'
        },
        series: [
            {
                name: 'Access From',
                type: 'pie',
                radius: '50%',
                data: [
                    { value: 1048, name: 'Search Engine' },
                    { value: 735, name: 'Direct' },
                    { value: 580, name: 'Email' },
                    { value: 484, name: 'Union Ads' },
                    { value: 300, name: 'Video Ads' }
                ],
                emphasis: {
                    itemStyle: {
                        shadowBlur: 10,
                        shadowOffsetX: 0,
                        shadowColor: 'rgba(0, 0, 0, 0.5)'
                    }
                }
            }
        ]
    };
    myChart.setOption(option);
    // 监听窗口大小变化
    function resizeChart() {
        myChart.resize();
    }
    window.addEventListener('resize', resizeChart);
    //赋值函数
    function setData(data){
        option.series[0].data = data;
        myChart.setOption(option);
    }
</script>
</body>
</html>
